CN104902950B - Deployment catheter is oriented to without the collar - Google Patents
Deployment catheter is oriented to without the collar Download PDFInfo
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- CN104902950B CN104902950B CN201380048301.5A CN201380048301A CN104902950B CN 104902950 B CN104902950 B CN 104902950B CN 201380048301 A CN201380048301 A CN 201380048301A CN 104902950 B CN104902950 B CN 104902950B
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- Prior art keywords
- deployment catheter
- reinforcing member
- proximal shaft
- distal
- distal sheath
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0052—Localized reinforcement, e.g. where only a specific part of the catheter is reinforced, for rapid exchange guidewire port
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0053—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/0069—Tip not integral with tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/02—Holding devices, e.g. on the body
- A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
Embodiment of the disclosure describes a kind of exemplary guiding deployment catheter (100).Being oriented to deployment catheter may include proximal shaft (102), and it has near-end (104), distal end (106), distally with join domain (108).It is oriented to deployment catheter and may also include distal sheath (110), it has near-end (114), distal end (112) and the inner chamber extended in-between.Distal sheath may include outer layer (120), internal layer (119) and the middle reinforcing member (116) being arranged between internal layer and outer layer.In addition, distal sheath is connected on the join domain adjacent with reinforcing member.
Description
The cross reference of related application
The application requires to enjoy in the U.S. Provisional Application No.61/ that September in 2012 submits on the 17th in 35U.S.C. § 119 times
702.080 priority, it is fully incorporated in herein by reference.
Technical field
The disclosure is directed to medical treatment device and the method for manufacturing medical treatment device.More specifically, the disclosure is directed to
Medical treatment device inside elongation, it includes the guiding deployment catheter of no collar.
Background technology
It is various extensively inside medical treatment device be studied for medical application, for example, intravascular purposes.These
Device it is some including seal wire, conduit etc..These devices are manufactured by any one of a variety of manufacture methods method
Form, and can be used according to any one of various methods method.For known medical treatment device and method, its is equal
With some merits and demerits.At present for providing alternative medical treatment device and for manufacturing and using the alternative of medical treatment device
Method has lasting demand.
The content of the invention
The disclosure is directed to for manufacturing medical treatment device, guiding deployment catheter and being seamlessly transitted for offer several
Design, material, system and method.
Embodiment of the disclosure describes a kind of exemplary guiding deployment catheter.Being oriented to deployment catheter may include nearside
Axle, it has near-end, distal end, distally with join domain.Be oriented to deployment catheter may also include distal sheath, its have near-end,
Distal end and the inner chamber extended in-between.During distal sheath may include outer layer, internal layer and be arranged between internal layer and outer layer
Between reinforcing member.In addition, distal sheath is connected on the join domain adjacent with reinforcing member.
Other embodiments disclose a kind of exemplary guiding deployment catheter.Being oriented to deployment catheter may include proximal shaft, its
With near-end, distal end, distally with join domain.In addition, deployment catheter may include distal sheath, it has proximally and distally；
A part for distal sheath may include to be connected to the reinforcing member on join domain.
Additional embodiment describes a kind of method for being used to manufacture guiding deployment catheter.This method may include to provide nearside
Axle, it has near-end, distal end and join domain.This method may also include offer distal sheath, and it has outer polymeric layer, cohesion
Compound layer and middle reinforcing member.In addition, this method may include to make join domain be in contact with reinforcing member.In addition, the party
Method may include join domain being welded in reinforcing member.
The general introduction of certain examples above is not intended to describe every kind of embodiment party of each disclosed embodiment or the disclosure
Formula.Accompanying drawing and detailed description behind will more particularly exemplify these embodiments.
Brief description of the drawings
In view of described further below, the disclosure will be more fully appreciated with reference to accompanying drawing, wherein：
Figure 1A is plan, which show an exemplary guiding catheter, wherein being oriented to deployment catheter passes through sustainer
Advance in aperture coronarius.
Fig. 2A -2D show the various methods for connecting the structure of proximal shaft and distal sheath.
Although the disclosure submits to various modifications and alterative version, it is had shown that by the example in figure
Specific embodiment, and will be described in more detail.It is to be understood, however, that it is not intended to limit the invention to the spy
Different embodiment.On the contrary, it is intended to cover it is all fall modification in spirit and scope of the present disclosure, equivalent and alternative
Scheme.
Embodiment
For word defined below, it is necessary to using these definition, unless other in claim or this specification
Place gives different definition.
Here all numerical value all assume to be modified by word " about ", regardless of whether explicitly indicating out.Word is " big
Some digital scope about " is often referred to, those of skill in the art are considered as it and are equivalent to stated value (that is, with identical
Function or result).In many cases, word " about " may include the numeral for being rounded to nearest significant figure.
The number range enumerated by end points include in the range of all numerals (such as 1 to 5 include 1,1.5,2,2.75,3,
3.80,4 and 5).
Unless clearly dictated in context, the otherwise odd number shape used in this specification and appended claims
Formula " one ", "one" and " this " include plural number reference.Unless present disclosure clearly dictates, otherwise this specification and
Word "or" used in appended claims is usually used in including "and/or" with regard to succeeding in reaching an agreement in its meaning.
Pay attention to, institute is indicated to " one embodiment ", " some embodiments ", " other embodiments " etc. statement in specification
The embodiment stated may include one or more specific characteristic, structure and/or features.However, this statement is not necessarily mean that
All embodiments all include these specific characteristic, structure and/or features.It is in addition, specific when combining one embodiment description
When characteristic, structure and/or feature, it will be appreciated that this characteristic, structure and/or feature may also be combined with other embodiments to be made together
With whether having done and clearly described, stated on the contrary unless clearly having done.
It is described further below to be read with reference to the accompanying drawings, wherein similar element in various figures there is identical to compile
Number.These figures being not drawn necessarily to scale depict illustrative embodiment, it is not intended to limit the scope of the present invention.
Embodiment of the disclosure may include guiding deployment catheter, and it has proximal shaft and distal sheath.Proximal shaft, which has, to be connected
Region is connect, and distal sheath has outer layer, internal layer and the middle reinforcing member being arranged between internal layer and outer layer.Distal sheath
A part be attached on the join domain adjacent with reinforcing member.
For the purpose of this disclosure, " nearside " refers to during use closer to the end of device operator, and " distal side "
Refer to the end from device operator farther out during use.
Minimally invasive heart PCI such as percutaneous transluminal coronary angioplasty is widely utilized in the world.These
Program may include the use of guiding catheter.Moved for example, guiding catheter 10 can be advanced to by blood vessel such as sustainer A with coronal
Position (such as the left side and/or the right) adjacent arteries and veins CA aperture O, as shown in Figure 1A.When so-positioned, conduit is treated
The target location that (such as spherical catheter, rack conveying system etc.) can be proceeded in coronary arteries CA by guiding catheter 10,
Treatment conduit can be used to perform suitable heart intervention treating here.
In order that treatment conduit effectively achieves the set goal position, it may be necessary to keeps guiding catheter 10 coronal dynamic
Position at arteries and veins CA aperture O.For example it is assumed that heart may beat (and/or other factorses) during PCI, guiding is led
Pipe 10 may lose its positioning, or be moved, and it is no longer positioned to effectively guide treatment conduit to coronary artery
Place.Deviate the aperture O of coronary arteries CA in this distal end 12 that may include guiding catheter 10.Due to deviateing aperture O, so close hat
Shape artery CA may need the repositioning of guiding catheter 10, so that distal end 12 returns to the aperture O phases with coronary arteries CA
The position of engagement.
Method disclosed herein is medical treatment device and for manufacturing and using medical treatment device, it can improve to coronary artery
CA's is close.Here, it is oriented to deployment catheter 14 and extends to hat through guiding catheter 10 and beyond the distal end 12 of guiding catheter 10
In shape artery CA.For example, be can be extended out because being oriented to deployment catheter 14 outside the distal end 12 of guiding catheter 10, extension is oriented to
Conduit 14 can be extended out outside the aperture O of coronary arteries CA, and enter in a part for coronary arteries CA.By extending aperture
Outside O, deployment catheter 14 can make the positioning stablity of guiding catheter 10, and allow to improve to coronal for multiple heart intervention treating
Artery CA's is close.
In some guiding deployment catheters, the collar can be used for connecting proximal shaft and distal sheath.The collar is probably
Metal tube, by thrust, proximally axle passes to distal sheath for it.But in this configuration, bending stiffness can at ferrule-based fittings
It can increased.In addition, thimble structure is probably potential knot point.Thus, need to make between proximal shaft and distal sheath
The especially pliability transitions smooth of junction point.In view of the limitation being previously mentioned, the invention discloses for not utilizing the collar
Or the various modes for connecting proximal shaft and distal sheath under conditions of other bridging structures.These structures will combine figure
2A-2D is described in detail.
Fig. 2A is the cross-sectional view that one exemplary " no collar " is oriented to deployment catheter 100.As illustrated, deployment catheter
100 include proximal shaft 102 and distal sheath 110.Proximal shaft 102 can be used as handle or expansion, thus it is probably elongation
Part or hypotube (hypotube) shape structure, it has near-end 104, distal end 106 and the connection at its distal end 106
Region 108.Join domain 108 can be used for proximal shaft 102 being connected in distal sheath 110.In an illustrated embodiment, connect
Region 108 uses flat form, but in other embodiments, this region can use any required shape of cross section, example
As suited for cylinder, circle, rhomboid, rectangle, ellipse, the semicircle etc. being connected in distal sheath 110.Proximal shaft
102 can further limit inner chamber between proximally and distally 104,106 respectively.The inner chamber can be along the whole length of proximal shaft 102
Spend and extend.In other embodiments, inner chamber can extend only along a part of length of proximal shaft 102.Also some its
In its embodiment, proximal shaft 102 is probably solid conductor or part (lacking inner chamber).
Distal sheath 110 is probably tubular part, and it includes near-end 114, distal end 112 and the inner chamber extended in-between.
Give its function under conditions of, distal sheath 110 be probably it is sufficiently large, with allow treat conduit (such as spherical catheter, branch
Frame transmission system etc.) pass through it.For example, when being oriented to deployment catheter 14 and being positioned in guiding catheter 10, treatment conduit can be
The inner chamber of distal sheath 110 is extended across in guiding catheter 10 along proximal shaft 102.In certain embodiments, distal sheath
110 can have the proximal open and distal openings respectively on proximally and distally 114,112.Distal sheath 110 is suitably adapted for
Coaxially slide into the inner chamber of required guiding catheter, and it is outstanding from distal end 112.It is suitable that distal sheath 110 can use
Shape of cross section, such as circular, ellipse, polygon etc..In certain embodiments, the cross section shape of distal sheath 110
Shape may look like the shape of cross section of the inner chamber of required guiding catheter.
Forming the material of distal sheath 110 may include outer layer 120, internal layer 119 and is arranged on internal layer 119 and outer layer 120
Between middle reinforcing member 116.A part for distal sheath 110 is attached to the join domain adjacent with reinforcing member 116
On 108.In an illustrated embodiment, join domain 108 can be connected directly between in reinforcing member 116.Proximal shaft 102 is attached to
In distal sheath 110, so as to provide less bending stiffness at join domain 108.A kind of technology for being used to realize the result
It may include and join domain 108 is struck out into flat form, be then welded in reinforcing member 116.This proximal shaft 102
It is directly connected to that seamlessly transitting for active force (thrust or pulling force) can be provided with distal sheath 110, proximally axle 102 passes to far for it
Side sheath 110.Seamlessly transit the kink for preventing proximal shaft 102 in bending.Therefore, the length of join domain 108 may be selected,
So as to minimum kink.For example, the length of join domain 108 is bigger, then more uniform nearside active force can be distributed in
In distal sheath 110, but, if length is relatively small, then there may be the force vector of some contretempses, it may
Cause kink.As discussed above, various welding techniques may include but be not limited to laser welding, plasma welds,
Resistance welding and electron beam welding etc..
At least in certain embodiments, reinforcing member 116 may include one or more wires, its be configured to rolling band, coil,
It is netted etc..Other arrangements and/or form are contemplated that.Reinforcing member 116 generally strengthens the rigidity of distal sheath 110.Increase
The wire of strong part 116 can be made up of homogenous material or different materials, thus the diameter of wire may change.Reinforcing member 116
It can extend along the whole length of distal sheath 110, but in certain embodiments, reinforcing member 116 can be along distal sheath
110 part and extend.Reinforcing member 116 can be sandwiched between internal layer 119 and outer layer 120, and is probably tubular form,
Or it is also contemplated that other shapes.Reinforcing member 116 can be made up of sufficiently rigid material, so as to by longitudinally applied active force
Distally the near-end 114 of sheath 110 transmits at distal end 112.In one example, reinforcing member 116 can be made of stainless steel,
So as to provide longitudinal rigidity for distal sheath 110.The shape and thickness of reinforcing member 116 can change in a variety of ways, from
And the pliability needed for being obtained in any position of the length along distal sheath 110.
The reinforcing member 116 of layer 119,120 and distal sheath 110 can be formed by suitable biocompatible materials, including
Polymer, metal (such as nitinol), mixture, alloy, its combination etc..Disclosed herein is some exemplary materials
Material.Reinforcing member 116 can be substituted by one or more supports, shelf-like Pipe Cutting.Shelf-like Pipe Cutting can include each as needed
The different cutting pattern of kind, arrangement, form etc..In addition, in the case where reinforcing member 116 is braided material, the structure can
Include the wire of various forms, for example, one on the other, two on one under or two on twice etc..In an illustrated embodiment, weave
Wire can have structure one on the other.Braided wire can have any suitable shape, including arc, banding, square, triangle
Shape etc..The intensity of element can be limited by the density woven.Braided wire may be provided with various angle of weave forms.Braiding is led
The pattern of line can be chosen, with required rigidity.Wire can be set in such a way, so as in surgical operation
Deformation under preventing radial load leading during program.
In order to control the rigidity of braiding, some braided wires can be by being welded on crosspoint (such as dotted line at near-end 114
Shown in 118) and be attached.Other crosspoints 118 retain, and are not connected with braided wire.The crosspoint 118 of welding can provide more
Big stiffness transition, and unwelded point provides pliability.The crosspoint 118 of welding can provide proximally axle 102 to distal side
The less bending stiffness of sheath 110.In order to be explained further, the crosspoint 118 of welding can strengthen between two connection sections
Combination integrality, thus less unexpected transition can be provided, and reduce the tendency of kink to greatest extent, and can provide compared with
Few moment of torsion transmission.Based on rigidity requirement, more or less braided wires may be welded.The feature of welding braided wire can use
Produce pliability gradient in the length along distal sheath 110 and carry out transition.The density of pad in a circumferential direction can be true
The rigidity of fixed tube.In one embodiment, welding method can use friction welding, laser welding or similar method.Welding
The pattern of braided wire may be designed, so as to meet the requirement of push and pliability transition.
In an alternative embodiment, proximal shaft 102 can be welded to distal side shield by proximal shaft 102 and distal sheath 110
It is attached under conditions of on set 110.In such an embodiment, proximal shaft 102 can be embedded in the layer of distal sheath 110.More
Specifically, proximal shaft 102 can be encapsulated between reinforcing member 116 and outer layer 120.For example, (the i.e. join domain of proximal shaft 102
108) proximity of reinforcing member 116 is may be provided at, and outer layer 120 may be provided on join domain 108, so as to nearly
Side axle 102 is connected in distal sheath 110 (i.e. by backflow or other suitable techniques).In that manner, outer layer 120 can
For proximal shaft 102 to be physically connected into distal sheath 110.Or join domain 108 may be provided at reinforcing member 116
Inner surface near, and internal layer 119 may be provided on join domain 108, so as to which proximal shaft 102 is connected into distal sheath
On 110 (such as by backflow or other suitable techniques).
Fig. 2 B show the alternative approach being connected to proximal shaft 102 in distal sheath 110.More specifically, Fig. 2 B show
One embodiment is shown, wherein the near-end 114 of the distally sheath 110 of a branch of wire 122 from reinforcing member 116 is projected into closely
In the distal end 106 of side axle 102.Then punching press can be carried out to proximal shaft 102, so as to which the material of proximal shaft 102 is crimped onto into this beam
On wire 122.In certain embodiments, proximal shaft 102 can be formed by hypotube, and it will provide inner chamber, and wherein bundle conductor 122 exists
It is can be inserted into before punching operation in inner chamber.In another embodiment, bundle conductor 122 may include 4 to 32 single wires.The number
Word alterable, to meet the needs of concrete application.When one or more wires from distal sheath 110 can fall and formed and led
During wire harness 122, this wire may block the proximal open (not shown) of distal sheath 110.In this case, through nearside
The part of the bundle conductor 122 of opening can be cut off, " to reopen " proximal open so that therapeutic system can be easily
Through it.
Fig. 2 C show one embodiment, and wherein crosspoint 118 can be welded in a manner of pre-qualified.In shown reality
Apply in example, braided wire can be welded at near-end 114, but it is when wherein lead distal end mobile when, the braiding of welding
The quantity of wire can be reduced along the length of distal sheath 110, so as to meet pliability demand.Shown in figure with dotted line
The crosspoint 118 of welding.By changing the density of pad in a longitudinal direction, braiding pipe stiffness changes.It is contemplated that weldering
Other patterns of braided wire are connect, so as to obtain required rigidity and pliability.The braided wire of welding is fewer, and the structure is got over
It is flexible.
Fig. 2 D illustrate one embodiment, and the wherein coverage of reinforcing member 116 is less than the whole length of distal sheath 110
Degree, remaining exposed part 124.That part is probably inclined so that transition and pliability are little by little in a distal direction
It is mobile.Shown embodiment may include join domain 108 being welded in distal sheath 110.Or proximal shaft 102 can pass through
Solder reflow process and be connected in distal sheath 110, solder reflow process is well known in the art, thus need not be
Here it is described.
Additional embodiment discloses a kind of method for being used for manufacture and deployment catheter being oriented to without the collar.This method may include to provide
Proximal shaft 102, it has near-end 104, distal end 106 and join domain 108.This method, which may also include, provides distal sheath 110, its
With outer polymeric layer 120, interpolymer layer and middle reinforcing member 116.In addition, this method may include to make join domain 108
It is in contact with reinforcing member 116.In addition, this method may include join domain 108 being welded in reinforcing member 116.At certain
In a little embodiments, this method may include to make outer polymeric layer 120 flow back in proximal shaft 102, and non-solder.This method can also wrap
Include and be inserted into the near-end of braided wire in the inner chamber of proximal shaft 102.In addition, this method may include the near-end punching of braided wire
It is pressed onto in proximal shaft 102.
Manufacturing distal sheath 110 may include to utilize mandrel, and it has and the required shape phase for part 119/120/116
Corresponding shape.For example, mandrel may include the major part corresponding with portions of proximal and the corresponding smaller part of distal part
Point and the circular cone corresponding with conical section.Manufacturing process may include traditional reflux technique or other suitable techniques 30.
The all length part of distal sheath 110 can carry or including radiopaque material.Outer layer 120 and internal layer
119 can be formed from the same material.In some embodiments of these embodiments, outer layer 120 and internal layer 119 may include identical
Polymeric material, and carry identical or different radiopaque material.For example, internal layer 119 may include polyether block amide,
It carries the tungsten for calculating by weight about 75-95% (such as about 90%), and outer layer may include polyether block amide, its
Carry and calculate by weight about 30-50% (such as 40%) basic bismuth carbonate.These are example.In other embodiments,
Outer layer and internal layer can be made from a variety of materials.
The coating that deployment catheter 100 may also include many is oriented to, it can for example reduce friction.For example, proximal part can have
There is internal layer/outer coating, it includes the hydrophilic polymer that friction can be reduced during tracking.One exemplary coatings may include
BAYERCL-100, BIOSLIDE, SLIP COAT, MDX etc..These are example.It is also contemplated that other materials, including here
Those disclosed material.These material alterables, it can be used for the various components of guiding deployment catheter disclosed herein.For letter
Monocular, discussion below with reference to proximal shaft and distal sheath.However, this is not limiting as device described here and side
Method, because this discussion can be applied to the component of other similar tubular parts and/or tubular part or device disclosed herein.
A kind of medical treatment device component includes being oriented to deployment catheter, guiding catheter and seal wire, or including metal, polymer,
Metal-polymer composites etc..Some examples of suitable metal and metal alloy include stainless steel, such as 304V, 304L
With 316LV stainless steels；Mild steel；Ni-Ti alloy, such as linearly-elasticity and/or super-elasticity nitinol；Other nickel
Alloy, such as Ni-Cr-Mo alloy (such as UNS:N06625, such as625、UNS:N06022, such asUNS:N10276, such asIt is otherAlloy
Etc.), monel (such as UNS:N04400, such as400、400、
400 etc.), nickel-cobalt-chromium-molybdenum alloy (such as UNS:R30035, such asEtc.), nickel-molybdenum alloy (such as UNS:
N10665, such asAlloy), other nickel-chromium alloys, other nickel-molybdenum alloys, other nickel-cobalt alloys,
Other nickel-ferro alloys, other nickel-copper alloys, other nickel-tungstens or tungsten alloy etc.；Cobalt-chromium alloy；Cobalt-chromium-molybdenum alloy (such as
UNS:R30003, such asEtc.)；Stainless steel rich in platinum；Titanium；Its combination etc.；Or appoint
What its suitable material.Some suitable polymer examples may include polytetrafluoroethylene (PTFE) (PTFE), ethylene tetrafluoroethylene
(ETFE), PEP (FEP), polyformaldehyde (POM, such as can be obtained from Du Pont), segmented polyetherester,
Polyurethane (such as polyurethane 85A), polypropylene (PP), polyvinyl chloride (PVC), polyether ester are (for example, can be from DSM engineering plastics
What company obtained), the copolymer of ether or ester group is (for example, butylene/poly- (alkylene ether) ester and/or other polyester
Elastomer, such as can be obtained from Du Pont), polyamide is from Bayer (for example, can obtainOr
It can be obtained from Ai Erfu Atochem (FR) Cedex 22, 94091 Paris La Defense, France), elastic polyamide, block polyamide/ether, polyether block acyl
Amine (such as can be in trade (brand) nameThe PEBA of lower acquisition), ethylene-vinyl acetate copolymer (EVA), silicones, polyethylene
(PE), Marlex high density polyethylene (HDPE), Marlex low density polyethylene (LDPE), LLDPE (such as
), polyester, polybutylene terephthalate (PBT) (PBT), polyethylene terephthalate (PET), poly terephthalic acid propane diols
Ester, PEN (PEN), polyether-ether-ketone (PEEK), polyimides (PI), PEI (PEI), polyphenylene sulfide
Ether (PPS), polyphenylene oxide (PPO), poly- terephthalate amine (such as), polysulfones, nylon, Nylon-12 (such as can be from EMS
What U.S. Ge Lilan was obtained), perfluoro (propyl vinyl ether) (PFA), ethylene-vinyl alcohol copolymer, polyene
Hydrocarbon, polystyrene, epoxy resin, Vingon (PVdC), poly- (styrene-b-isobutylene-b-styrene) (such as SIB and/
Or SIBS50A), makrolon, ionomer, biocompatible polymer, other suitable materials or its mixture, composition,
Copolymer, polymer/metal compound etc..These are example.
Although above embodiments have used deployment catheter is oriented to, it will be appreciated that those skilled in the art that here
The principle of displaying can be applied to any device, and it is considered as being advantageous on seal wire easily tracking and is oriented to deployment catheter.Phase
Instead, structure detail, including in the range of manufacturing technology and material all understand well within those of skill in the art, and
And it is shown in detail herein without progress is any.These and other modifications and variations are all well within the skill in this area
In the scope of the present disclosure that art personnel are envisaged that and implemented.
In view of the explanation and way of embodiments disclosed herein, the other embodiments of the disclosure are in this area
What technical staff will be apparent.Specification and example are intended to be considered to be only exemplary, and are not departing from following right
It is required that it can be changed under conditions of described the scope of the present disclosure and spirit in terms of form and details.
Claims (15)
1. one kind is oriented to deployment catheter, including：
Proximal shaft, it has proximally and distally, and the distal end has join domain, and the proximal shaft is included from the join domain
The nearside axle portion proximally extended, the nearside axle portion have shaft diameter, and the join domain has less than the shaft diameter
Join domain diameter；With
Distal sheath, it extends from the proximal shaft towards distal side, and with near-end, distal end and inner chamber between the two, it is described remote
Side sheath have more than the shaft diameter sheath diameter, and including outer layer, internal layer and be arranged on the internal layer and it is described outside
Middle reinforcing member between layer；
Wherein described distal sheath is described near by being welded and fixed between the middle reinforcing member and the join domain
Side axle,
Wherein described proximal shaft portion is axially-spaced with the distal sheath.
2. guiding deployment catheter according to claim 1, it is characterised in that the middle reinforcing member includes braid.
3. guiding deployment catheter according to claim 2, it is characterised in that the join domain is stamped and be welded on institute
State on braid.
4. guiding deployment catheter according to claim 2, it is characterised in that the braid includes multiple crosspoints, and
And crosspoint is welded together described in wherein at least some.
5. guiding deployment catheter according to claim 4, it is characterised in that the quantity in the crosspoint welded together
Change along the length of the middle reinforcing member.
6. the guiding deployment catheter described in any claim in claim 1-5, it is characterised in that the proximal shaft is embedding
Between the outer layer and the middle reinforcing member.
7. the guiding deployment catheter described in any claim in claim 1-5, it is characterised in that the middle enhanced portion
Part includes multiple wires, and it is respectively provided with near-end, and the near-end of wherein described wire is commonly bundled together and is arranged on the nearside
In the join domain of axle.
8. guiding deployment catheter according to claim 7, it is characterised in that the wire connects proximally by punching press
In the proximal shaft.
9. the guiding deployment catheter described in any claim in claim 1-5, it is characterised in that the middle enhanced portion
Part extends to the near-end of the distal sheath.
10. the guiding deployment catheter described in any claim in claim 1-5, it is characterised in that strengthen among described
Part extends to the distal position of the near-end of the distal sheath.
11. the guiding deployment catheter described in any claim in claim 1-5, it is characterised in that described to be oriented to extension
Conduit is not located at the proximal shaft and is connected to between the distal sheath and by the proximal shaft in the distal sheath
The collar.
12. one kind is oriented to deployment catheter, including：
Proximal shaft, it has proximally and distally, and the distal end has join domain；With
Distal sheath, it has proximally and distally, and a part for the distal sheath includes the reinforcing member of braiding, and it is connected to
On the join domain,
Wherein described distal sheath is described by being welded and fixed between the reinforcing member of the braiding and the join domain
Proximal shaft.
13. guiding deployment catheter according to claim 12, it is characterised in that the reinforcing member of the braiding includes multiple
Crosspoint, and crosspoint is welded together described in wherein at least some.
14. guiding deployment catheter according to claim 13, it is characterised in that the number in the crosspoint welded together
Amount changes along the length of the reinforcing member of the braiding.
15. the guiding deployment catheter described in any claim in claim 12-14, it is characterised in that the distal side shield
Set includes interpolymer layer and outer polymeric layer, and wherein described proximal shaft is arranged on the outer polymeric layer and the braiding
Reinforcing member between.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261702080P | 2012-09-17 | 2012-09-17 | |
| US61/702080 | 2012-09-17 | ||
| PCT/US2013/060151 WO2014043694A1 (en) | 2012-09-17 | 2013-09-17 | Collarless guide extension catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104902950A CN104902950A (en) | 2015-09-09 |
| CN104902950B true CN104902950B (en) | 2018-04-10 |
Family
ID=49261805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380048301.5A Active CN104902950B (en) | 2012-09-17 | 2013-09-17 | Deployment catheter is oriented to without the collar |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9352123B2 (en) |
| EP (2) | EP3042685B1 (en) |
| CN (1) | CN104902950B (en) |
| WO (1) | WO2014043694A1 (en) |
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-
2013
- 2013-09-17 EP EP16153439.1A patent/EP3042685B1/en active Active
- 2013-09-17 US US14/029,249 patent/US9352123B2/en active Active
- 2013-09-17 EP EP13770601.6A patent/EP2895227B1/en active Active
- 2013-09-17 CN CN201380048301.5A patent/CN104902950B/en active Active
- 2013-09-17 WO PCT/US2013/060151 patent/WO2014043694A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN104902950A (en) | 2015-09-09 |
| US20140081243A1 (en) | 2014-03-20 |
| US9352123B2 (en) | 2016-05-31 |
| EP2895227A1 (en) | 2015-07-22 |
| WO2014043694A1 (en) | 2014-03-20 |
| EP2895227B1 (en) | 2018-06-20 |
| EP3042685B1 (en) | 2020-01-29 |
| EP3042685A1 (en) | 2016-07-13 |
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